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OPPO Kernel Craftsman
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OPPO Kernel Craftsman

Sharing Linux kernel-related cutting-edge technology, technical articles, technical news, and curated tutorials

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Latest from OPPO Kernel Craftsman

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OPPO Kernel Craftsman
OPPO Kernel Craftsman
Dec 8, 2023 · Mobile Development

Android Audio Smoothness: Performance Analysis and Optimization Guide

This guide helps Android audio developers understand and eliminate stutter, pop noise, and other glitches by examining audio formats, pipeline components, CPU scheduling, common failure cases, and offering concrete optimization steps such as proper thread priorities, reduced API blocking, and efficient frame‑count configuration.

AndroidOptimizationPerformance
0 likes · 18 min read
Android Audio Smoothness: Performance Analysis and Optimization Guide
OPPO Kernel Craftsman
OPPO Kernel Craftsman
Dec 1, 2023 · Fundamentals

Performance Optimization: Register Access, Assembly Basics, and CPU Pipeline Techniques

The article explains how performance can be dramatically improved by keeping frequently used data in CPU registers instead of memory, understanding basic assembly syntax and instruction types, using branch‑prediction hints, and exploiting the CPU pipeline to reduce stalls and wasted cycles.

Assembly LanguageCPU registersPerformance optimization
0 likes · 12 min read
Performance Optimization: Register Access, Assembly Basics, and CPU Pipeline Techniques
OPPO Kernel Craftsman
OPPO Kernel Craftsman
Nov 27, 2023 · Mobile Development

Understanding Android HWUI, Skia, and OpenGL Rendering Pipeline

The article explains Android’s graphics pipeline by detailing how HWUI and Skia translate view operations into OpenGL ES commands, describing RenderThread stages such as synchronization, dirty‑region calculation, buffer handling, and drawing, and comparing mobile GPU architectures like TBR, TBDR, and IMR.

AndroidGPUOpenGL
0 likes · 13 min read
Understanding Android HWUI, Skia, and OpenGL Rendering Pipeline
OPPO Kernel Craftsman
OPPO Kernel Craftsman
Nov 14, 2023 · Fundamentals

Recap of the 2023 CLSF (China Linux Storage, Memory Management & File System) Workshop

The 2023 China Linux Storage, Memory Management and File System Workshop, held on October 26‑27 and organized by OPPO, gathered leading Linux kernel developers from firms such as SUSE, Intel, AMD, Huawei and academic institutions to present keynotes and talks on memory reclamation, scalability, storage, BPF, container images, and future kernel innovations, fostering collaborative advancement of Chinese kernel development.

2023Performancefile system
0 likes · 6 min read
Recap of the 2023 CLSF (China Linux Storage, Memory Management & File System) Workshop
OPPO Kernel Craftsman
OPPO Kernel Craftsman
Nov 10, 2023 · Fundamentals

Insights from the 18th China Linux Kernel Developers Conference (CLK 2023) on Enhancing China’s Open‑Source Influence

At the 18th China Linux Kernel Developers Conference in Shenzhen, nearly 500 engineers and senior experts from Tencent, Huawei, Loongson, Intel and Ant Group showcased major open‑source contributions and discussed strategies—such as corporate‑academic alliances, documentation translation and mentorship—to boost China’s code quality, trust and global influence in the Linux ecosystem.

ChinaLinux kernelcollaboration
0 likes · 18 min read
Insights from the 18th China Linux Kernel Developers Conference (CLK 2023) on Enhancing China’s Open‑Source Influence
OPPO Kernel Craftsman
OPPO Kernel Craftsman
Nov 10, 2023 · Operations

Memory Compaction in the Linux Kernel: Mechanisms, Strategies, and Implementation Details

Linux’s memory compaction mitigates external fragmentation by moving movable pages, employing four strategies—direct, passive (kcompactd), proactive, and active—each invoking the compact_zone core with configurable compact_control parameters, migrate‑page and free‑page scanners, and distinct trigger and exit conditions.

Linux kernelMemory Fragmentationkcompactd
0 likes · 45 min read
Memory Compaction in the Linux Kernel: Mechanisms, Strategies, and Implementation Details
OPPO Kernel Craftsman
OPPO Kernel Craftsman
Nov 2, 2023 · Industry Insights

OPPO’s Kernel Tweaks: Dynamic HugePages and Scheduler Boosts for Smoother ColorOS

At the 18th China Linux Kernel Developer Conference, OPPO unveiled memory and scheduler optimizations—including a dynamic 64 KB huge‑page scheme, LRU reclamation improvements, and a latency‑aware scheduler balance—that collectively raise memory access performance by over 10 %, reduce lock contention, and lower frame‑drop and audio‑stutter rates, demonstrating the impact of programmable kernel technologies on Android smoothness.

Linux kernelMobile OSPerformance Tuning
0 likes · 7 min read
OPPO’s Kernel Tweaks: Dynamic HugePages and Scheduler Boosts for Smoother ColorOS
OPPO Kernel Craftsman
OPPO Kernel Craftsman
Nov 1, 2023 · Fundamentals

Recap of the 18th China Linux Kernel Developers Conference (CLK 2023)

On October 28 2023, the 18th China Linux Kernel Developers Conference gathered nearly 500 developers in Shenzhen, livestreamed to over 180,000 viewers, featured keynote talks on kernel scheduling, AI‑driven evolution, Rust integration, and cloud‑hardware co‑design, and offered sub‑forums on memory, virtualization, I/O, and eBPF, with all materials now publicly available.

ConferenceKernel DevelopmentRust
0 likes · 8 min read
Recap of the 18th China Linux Kernel Developers Conference (CLK 2023)